Mood Changes You Can't Quite Explain
Feeling unusually irritable, anxious, or low can signal either deficiency. Vitamin D3 plays a direct role in regulating mood naturally throughout the day. Low D3 levels have been linked closely to seasonal depression symptoms. B12 deficiency can also affect brain chemistry and emotional balance significantly. Some people notice brain fog alongside these unexplained mood shifts as well. Mental health symptoms deserve just as much attention as physical changes.
